If the previous response was incomplete (because there is more data to retrieve),
Amazon Mechanical Turk returns a pagination token in the response. You can use this
pagination token to retrieve the next set of results.

NumResults

Type: *int64

The number of Qualification requests on this page in the filtered results list,
equivalent to the number of Qualification requests being returned by this call.

QualificationRequests

The QualificationRequest data structure represents a request a Worker has made for
a Qualification.